Preheat the oven to 350F.,Wilt the spinach in a saucepan over medium heat for one minute.,Mix the spinach with the ground chicken breast.,Add the eggs, crushed cashews, oregano and salt and pepper to taste.,Mix thoroughly.,______,Repeat with 3 more sheets, brushing each one liberally with olive oil.,Using 1/2 of the chicken/spinach mix, place it along the bottom of the phyllo sheets.,Leave a 1/2 inch margin on each side.,Fold the two sides in so nothing will leak out, and begin to roll the sheets up away from you.,Repeat this process with the other 4 sheets and the other half of the chicken/spinach mix.,Bend each roll to form a wide crescent, and place on a baking sheet covered with parchment paper.,Brush each crescent liberally with the olive oil.,Bake for about 1 hour.,If it looks like the dough is browning too quickly, cover it with a sheet of silver foil.,Remove from the oven when done, and let rest for about 10 minutes.,Cut into slices and serve.,Can be served as both an appetizer or as a main course.,Servings are for an appetizer.